user-defined upper limit for the number of target sequences returned
Alignment
region of similarity between target and query sequences
E-value
a BLAST statistic representing the significance of an alignment, values close to zero
indicate high sequence similarity with low probability of the similarity occurring by chance
Identities
the number of exact nucleotide matches over the alignment, expressed as a fraction
and a percentage
Query Coverage
the length of the query sequence that matches the target sequence in the
alignment
Bit Score
a BLAST statistic measuring the quality of an alignment, higher values indicate a
more significant match
Span
the length of the alignment, including gaps
About Search by Sequence
Search by Sequence performs a nucleotide-nucleotide BLAST search against Addgene’s plasmid sequence database.
BLAST returns plasmids with similarity to the query sequence.
Results are sorted by E-value, a statistic from BLAST that describes the significance of a match.
Lower values are considered better matches.
FASTA headers and numbers at the beginning of each line will be removed.
The query should only contain DNA characters.
Tips for Success
Enter a distinct sequence that is an important, differentiating feature. For example, the coding region of
a gene, instead of the plasmid origin of replication.
Inspect the percent identity, query coverage, and alignment details to determine if a result match is satisfactory.
Visit the corresponding plasmid webpage to view additional details about a matching plasmid.
If no results are returned:
Try a different isoform or region of the desired sequence.
Choose a different BLAST database. Try the general “All Addgene Plasmids” (default selection),
instead of a specific database, such as “Plant Expression Plasmids”
Try selecting a different BLAST algorithm:
megablast: Designed for comparing sequences within the same, or closely related, species.
Default selection.
blastn: Designed for comparing sequences from different species. May return additional results,
if exact species match is not required.
blastn-short: Optimized for searching with shorter sequences (<= 30 nucleotides)
but can still be effective with slightly larger sequences.
There may not be a match in our database.
You can adjust the Max Results setting on the results page from 25 to 500. If many sequences share the same top E-value,
only a truncated set of equally high-scoring matches will be shown. Set the Max Results to 500 to see more matches.
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This plasmid encodes the kinase domain of CHK2. Intended for co-expression with Lambda Phosphatase that accompanies this set to enhance bacterial kinase expression.
CRISPR synthetic transcription factor repressor plasmid encoding dCas9, tracrRNA, and a single spacer CRISPR array encoding crRNA for orthogonal repression of T7-lac promoter variant 3F2.
encodes a donor vector for recombination with the Bxb1 recombinase with variant G102H of the Beta-2 Adrenergic Receptor and a cAMP-responsive luciferase reporter gene
For mammalian expression of an N-terminally triple FLAG-tagged and C-terminally triple AU1-tagged full length human GATA6 with a single serine#37 to alanine mutation
This plasmid encodes the kinase domain of MK08. Intended for co-expression with Lambda Phosphatase that accompanies this set to enhance bacterial kinase expression.
fusion protein of Gaussia luciferase variant superluminescent, Leptosphaeria maculans opsin, and enhanced yellow fluorescent protein for bioluminescent optogenetics
Vector for generating Flp-In cell lines allowing dox-inducible mammalian expression of 3xFlag-tagged TAF5 isoform lacking the alternative exon-8 (∆ex8)
Vector for generating Flp-In cell lines allowing dox-inducible mammalian expression of miniTurbo fused to TAF5 isoform lacking the alternative exon-8 (∆ex8)
Vector for generating Flp-In cell lines allowing dox-inducible mammalian expression of 3xFlag-tagged full length TAF5 isoform mutated to be resistant to TAF5 siRNA
Vector for generating Flp-In cell lines allowing dox-inducible mammalian expression of 3xFlag-tagged TAF5 isoform lacking the alternative exon-8 (∆ex8) mutated to be resistant to TAF5 siRNA
Expresses nuclease A-H124L from Staphylococcus aureus, with an A112C mutation, fused through a flexible linker to the transmembrane domain of poly-Leu-1A32 and a His-tag, for fluorescent studies.